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67412031 = 3109206153
BaseRepresentation
bin1000000010010…
…10000000111111
311200211212220220
410001022000333
5114224141111
610404512423
71445664351
oct401120077
9150755826
1067412031
1135063725
121a6ab713
1310c7389b
148d4b0d1
155db8e06
hex404a03f

67412031 has 8 divisors (see below), whose sum is σ = 90707760. Its totient is φ = 44528832.

The previous prime is 67412029. The next prime is 67412041. The reversal of 67412031 is 13021476.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67412031 - 21 = 67412029 is a prime.

It is a super-2 number, since 2×674120312 = 9088763847089922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 67411992 and 67412010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67412041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102750 + ... + 103403.

It is an arithmetic number, because the mean of its divisors is an integer number (11338470).

Almost surely, 267412031 is an apocalyptic number.

67412031 is a deficient number, since it is larger than the sum of its proper divisors (23295729).

67412031 is a wasteful number, since it uses less digits than its factorization.

67412031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206265.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 67412031 is about 8210.4829943189. The cubic root of 67412031 is about 406.9856881114.

The spelling of 67412031 in words is "sixty-seven million, four hundred twelve thousand, thirty-one".

Divisors: 1 3 109 327 206153 618459 22470677 67412031